1293
METHODS
' anthropometric
ed for laboratory
the sample were
snts, housewives,
isurements
Laboratory
BWand
y density
Cst57
80
23
25
12
16
4
, Negro females,
juent report [2].
re chosen but 5
studies of body
le-body K*° and
total body water
2, approximating
of diet and of
: Cs'5" data are
one hundred of
statement of the
: the three months
r loss of limb was
woman from the
Spits ire # ei REPEATte2 oA egies
‘d time available
categories. The
mass (LBM) was obtained by difference: body weight minus body fat=LBM.
Lean body weight (LBW*~*") was calculated from K*° counts per minute by conversion to grams K (counts/min divided by efficiency factor, 1.09) and to K m-equiv
by use of the formula:
LBW**° (kg)=
measured total K (m-equiv)
68.1
71,
The percentage standard weight for each subject was determined as the proportion of his body weight to the median weight by height for sex as presented in
Table 80 of the report of HaTHaway and Foarp [8]. Median weights for heights
not given in the tables were extrapolated.
The Gubner index [9] was calculated by subtracting the waist circumference in
inches from the height in inches.
The ponderal index was calculated by dividing height in inches by the cube root
of the weight in pounds.
Fe
conn eet
167
35
34
33
31
34
K#%and
LR Ghpee
ponding Roman
dtdTAd
aaclelia
deeat i caelAaBaeee a be agiones
in five arbitrary
Anthropometric measurements, described in detail in the preceding paper [1] for
easy reproducibility by the clinician, consisted of height, weight, seven circumferences, two limb lengths, five diameters and four skinfold thicknesses. Time required
to make all measurements on one subject averaged about 3 minutes.
Laboratory measurements, as previously described [1], consisted of total body
water (ITBW) after an oral tracer dose of tritium, specific gravity by the helium
dilution technique and whole-body counting of K*°. Body fat was calculated from
the combined results of the first two of the above measurements [6]. Lean body
ANALYSIS
OF
DATA
All data were prepared for analysis by computer. Arithmetic means, standard
deviations and ranges by subject category were obtained for all anthropometric
measurements and indexes, body density, total body water, calculated kilograms of
body fat and K*° counts per minute. Correlation matrices by subject category were
computed for anthropometric measurements and kilograms body fat for those
subjects who participated in the laboratory studies. Corresponding correlations for
anthropometric measurements alone were computed for all subject categories in
orderto verify the representativeness of the laboratory sample.
Linear regressions of calculated body fat on the anthropometric measurements
were determined for each of the five subject categories and for the following combined groups: all Caucasian males, all Caucasian females, Caucasian males and
females aged 25-34 years, Caucasian males and females aged 35-44 years, all males,
and all subjects.
For those subjects (n=68) having both K*° and body fat measurements the
calculated lean body weight from K*° counts/min (LBW*“*) was correlated with
lean body mass (LBM).
RESULTS OF ANTHROPOMETRIC AND LABORATORY
MEASUREMENTS
Table 2 presents the means, standard deviations and ranges for the anthropometric measurements and indexes for 2053 subjects by category. There was a wide
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Measures of Body Fat and Related Factors in Normal Adults-——ll